WO1997011140A1 - Synthetic ester base stocks for low emission lubricants - Google Patents
Synthetic ester base stocks for low emission lubricants Download PDFInfo
- Publication number
- WO1997011140A1 WO1997011140A1 PCT/US1996/003543 US9603543W WO9711140A1 WO 1997011140 A1 WO1997011140 A1 WO 1997011140A1 US 9603543 W US9603543 W US 9603543W WO 9711140 A1 WO9711140 A1 WO 9711140A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base stock
- synthetic ester
- hydroxyl groups
- esters
- acid
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/40—Esters containing free hydroxy or carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/50—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing halogen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/286—Esters of polymerised unsaturated acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/106—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing four carbon atoms only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/04—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen, halogen, and oxygen
- C10M2211/044—Acids; Salts or esters thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/06—Perfluorinated compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/251—Alcohol fueled engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/252—Diesel engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/252—Diesel engines
- C10N2040/253—Small diesel engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/255—Gasoline engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/255—Gasoline engines
- C10N2040/28—Rotary engines
Definitions
- the present invention relates generally to a family of unique highly polarized svnthetic esters for use in crankcase lubricating oils or other systems where hydrocarbon fuel and lubncant emissions suppression (I e , reduction), and a high degree of resistance to oxidative attack is desired
- the lubricating oil comprises a family of unique synthetic ester base stocks which are sufficiently polar to ensure that hydrocarbon fuel components are onlv minimally soluble in the lubncating oil, therebv reducing the amount of fuel which can be trapped in oil film at engine shutdown and exhausted from an engine together with the lubncant especially dunng engine start-up
- the present inventors have discovered that a select group of synthetic ester base stocks are able to reduce the amount of hydrocarbons exhausted together with the emissions from crankcase engines or other engines where fuel and lubncant emission suppression is desirable
- the synthetic ester base stocks are those which form highly polarized lubricants in which fuel components are only minimally soluble, thereby reducing the amount of fuel which is dissolved and/or dispersed within the lubricant, thereby leading to a reduction of hydrocarbons in the exhaust gas
- the present inventors have also determined that synthetic esters which are combined with at least one additional functional group that is capable of increasing the pola ⁇ tv ofthe functionalized synthetic ester and wherein the synthetic ester has an oxygen, nitrogen and/or halogen content of at least 15 wt %, based on the total weight ofthe synthetic ester are also capable of suppressing fuel and lubncant emissions
- viscosity index additives it is preferable to admix selected viscosity index additives with the base stocks ofthe present invention to improve the viscosity index, while maintaining the limited solubility o the base stock in hydrocarbon fuels. It is also conceivable that dispersive additives can be admixed with synthetic ester base stocks having unconverted hydroxyl groups in order to localize the resulting lubricant, i.e., at the fuel-air/lube and fuel-wall/lube interfaces
- the number of carbon atoms i.e., carbon number, wherein the term carbon number as used throughout this application refers to the total number of carbon atoms in either the acid or alcohol as the case may be
- number of hydroxy groups i.e., hydroxyl number
- the mono- carboxylic acid is preferably at least one acid selected from the group consisting of: 2,2- dimeth l propionic acid (neopentanoic acid), neoheptanoic acid, neooctanoic acid, neononanoic acid, neodecanoic acid, 2-methyl pentanoic acid, 2-ethyl hexanoic acid (2EH), 3,5,5-t ⁇ methvl hexanoic acid (TMH), isoheptanoic acid, isooctanoic acid, isononanoic acid and isodecanoic acid
- One especiallv preferred branched acid is 3,5,5-t ⁇ methyl hexanoic acid
- neo refers to a trialkyl acetic acid I e , an acid which is tnply substituted at the alpha carbon with alkyl groups These alkvl groups are equal to or greater than CH 3 as shown in
- 3,5 ⁇ -trimethyl hexanoic acid has the structure set forth herebelow
- a preferred highly polar synthetic ester composition ofthe present invention is one which contains unconverted hvdroxyl groups
- Such an ester is typically formed by reacting a polyhvdroxyl compound with at least one branched acid
- the polyol is preferably present in an excess of about 5 to 35 equivalent percent or more for the amount of acid used
- the composition ofthe feed polvol is adiusted so as to provide the desired composition ofthe product ester See U S Patent Application, Serial No 08/403,366
- linear acids can be admixed with the branched acids in a ratio of between about 1 99 to 80 20 and thereafter reacted with the branched or linear alcohol as set forth immediately above
- the same molar excess of alcohol used in the all branched case is also required in the mixed acids case such that the synthetic ester composition formed by reacting the alcohol and the mixed acids still has between about 5-35% unconverted hydroxyl groups, based on the total amount of hydroxyl groups in the alcohol
- n is an integer having a value of at least 2
- R is any aliphatic or cyclo- aliphatic hvdrocarbyl group containing from about 2 to about 20 or more carbon atoms and optionallv substituents such as chlorine, nitrogen and/or oxygen atoms
- R' is anv branched aliphatic hydrocarbyl group having a carbon number in the range between about G to C
- the reaction product also comprises at least one linear acid This linear acid being present in an amount of between about 1 to 80 wt % based on the total amount ofthe branched mono-carboxylic acid
- the linear acid is any linear saturated alkyl carboxvlic acid having a carbon number in the range between about C to C ⁇ 2
- each ofthe components may be incorporated into a base stock in any convenient way
- each ofthe components can be added directly to the base stock by dispersing or dissolving it in the base stock at the desired level of concentration
- Such blending mav occur at ambient temperature or at an elevated temperature
- EXAMPLE 1 For comparativ e purposes. Table 1 below demonstrates the Federal Test Procedure (FTP) emissions reduction for hydrocarbon (HC), I e , -3 9%, and carbon monoxide (CO) I e , -6 0% when a svnthetic polyol ester having an oxygen content of 20 wt %, based on the total weight ofthe base stock (I e , the polyol ester is formed from the reaction product of pentaerythntol and an oxooctanoic acid, l e , a mixture of branched C « acids which are formed from the hydroformvlation of a mixture of C 7 olefins) is compared agamst a mineral oil base stock of similar kinematic viscosity, typical of that contained in an SAE 30 grade motor oil
- TPE-BrC - C is a technical grade pcnt.icrytli ⁇ toi ester of ca. 75%, BrCo (3.5.5-l ⁇ methvl hexanoic acid i and ca. 25%. BrC ⁇ (o.xooctanoic acid ) ( 18 8 wt % oxv gen. nitrogen and/or halogen content)
- w uh uncom crted OH is a technical grade pentaerythritol ester of ca ! 00%> BrC 9 l hexanoic acid) having .30%. unconverted hydroxy groups disposed about the carbon chain of the ester ( 20 I wt %. oxygen, nitrogen and/or halogen content)
- lubricant composition has a drastic effect on the hydrocarbon fuel solubility in the lubricant and in subsequent engine emission hydrocarbon levels
- highly polar polyol ester lubricants i e , those containing sufficiently high (15 wt % or greater) oxygen, nitrogen and/or halogen content
- a strongly polar end group such as an unconverted hydroxyl group on the lubricant further reduces the fuel solubilitv in the lubricant
- a polvol ester having uncon erted hydroxyl groups disposed thereon was formed using technical grade pentaervth ⁇ tol and 3,5,5-t ⁇ methvl hexanoic acid (Sample 10) by mixing about 225 % molar equivalents of 3,5,5-trimethyl hexanoic acid with each mole of technical grade pentaerythritol. This was compared in Table 7 below with a conventional polyol ester formed from technical grade pentaerythritol and 3, 5.5 -trimethyl hexanoic acid (Sample 9) prepared using an excess of 3.5.5-trimethyl hexanoic acid
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96908825A EP0863964A1 (en) | 1995-09-21 | 1996-03-14 | Synthetic ester base stocks for low emission lubricants |
JP9512670A JPH11513417A (en) | 1995-09-21 | 1996-03-14 | Synthetic ester base for low emission lubricants |
AU52538/96A AU5253896A (en) | 1995-09-21 | 1996-03-14 | Synthetic ester base stocks for low emission lubricants |
BR9610647A BR9610647A (en) | 1995-09-21 | 1996-03-14 | Raw materials of synthetic esters for low emission lubricants |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/531,766 | 1995-09-21 | ||
US08/531,766 US5674822A (en) | 1995-09-21 | 1995-09-21 | Synthetic ester base stocks for low emission lubricants |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997011140A1 true WO1997011140A1 (en) | 1997-03-27 |
Family
ID=24118961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/003543 WO1997011140A1 (en) | 1995-09-21 | 1996-03-14 | Synthetic ester base stocks for low emission lubricants |
Country Status (8)
Country | Link |
---|---|
US (1) | US5674822A (en) |
EP (1) | EP0863964A1 (en) |
JP (1) | JPH11513417A (en) |
CN (1) | CN1055963C (en) |
AU (1) | AU5253896A (en) |
BR (1) | BR9610647A (en) |
CA (1) | CA2230125A1 (en) |
WO (1) | WO1997011140A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0946689A1 (en) * | 1996-09-13 | 1999-10-06 | Exxon Research And Engineering Company | Antioxidants and antioxidant boosters capable of producing hydroperoxyl radicals |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003522204A (en) * | 1997-10-01 | 2003-07-22 | ユニケマ ケミー ベスローテン フェンノートシャップ | Complex esters, formulations containing these esters and their use |
JP2001519457A (en) * | 1997-10-03 | 2001-10-23 | インフィニューム・ユー・エス・エー・エルピー | Lubricating composition |
US20030166473A1 (en) * | 2002-01-31 | 2003-09-04 | Deckman Douglas Edward | Lubricating oil compositions with improved friction properties |
US20070184991A1 (en) * | 2002-01-31 | 2007-08-09 | Winemiller Mark D | Lubricating oil compositions with improved friction properties |
US6821932B2 (en) * | 2002-12-17 | 2004-11-23 | Ethyl Corporation | Delivering molybdenum from a lubricant source into a fuel combustion system |
US7465696B2 (en) * | 2005-01-31 | 2008-12-16 | Chevron Oronite Company, Llc | Lubricating base oil compositions and methods for improving fuel economy in an internal combustion engine using same |
WO2006086752A1 (en) * | 2005-02-10 | 2006-08-17 | Inolex Investment Corporation | High temperature lubricant compositions and methods of making the same |
US20070232506A1 (en) * | 2006-03-28 | 2007-10-04 | Gao Jason Z | Blends of lubricant basestocks with polyol esters |
CN201972923U (en) | 2007-10-24 | 2011-09-14 | 艾默生环境优化技术有限公司 | Scroll machine |
JP5783913B2 (en) * | 2009-02-18 | 2015-09-24 | 昭和シェル石油株式会社 | Use of lubricating oil compositions with GTL base oils to reduce hydrocarbon emissions |
CN109439156A (en) * | 2018-10-27 | 2019-03-08 | 广州领扬科技有限公司 | A kind of automobile specified compressor Polarization Cooling film coating agent |
CN109337578A (en) * | 2018-10-27 | 2019-02-15 | 广州领扬科技有限公司 | A kind of house ornamentation dedicated compressor Polarization Cooling film coating agent |
CN110330430B (en) * | 2019-06-06 | 2022-04-19 | 深圳市优宝新材料科技有限公司 | Poly-alpha-olefin compound with polar ester group branched chain and preparation method thereof |
CN110437909B (en) * | 2019-08-20 | 2021-08-24 | 重庆化工职业学院 | Lubricating oil base oil and preparation method thereof |
US11760766B2 (en) | 2020-07-28 | 2023-09-19 | Ut-Battelle, Llc | Ionic liquids containing quaternary ammonium and phosphonium cations, and their use as environmentally friendly lubricant additives |
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GB1158386A (en) * | 1966-06-16 | 1969-07-16 | Sinclair Research Inc | Synthetic Esters |
GB1264897A (en) * | 1968-11-05 | 1972-02-23 | ||
US3694382A (en) * | 1969-07-10 | 1972-09-26 | Ethyl Corp | Ester lubricant |
US4113642A (en) * | 1976-11-11 | 1978-09-12 | Henkel Kommanditgesellschaft Auf Aktien | High viscosity neutral polyester lubricants |
US4175046A (en) * | 1978-09-20 | 1979-11-20 | Mobil Oil Corporation | Synthetic lubricant |
US4175047A (en) * | 1978-09-25 | 1979-11-20 | Mobil Oil Corporation | Synthetic ester and hydrogenated olefin oligomer lubricant and method of reducing fuel consumption therewith |
EP0413315A1 (en) * | 1989-08-15 | 1991-02-20 | Ethyl Corporation | Improved multigrade synthetic hydrocardon engine oil |
EP0612832A1 (en) * | 1992-12-07 | 1994-08-31 | Idemitsu Kosan Company Limited | Flame retardant hydraulic oil |
EP0646638A2 (en) * | 1993-09-30 | 1995-04-05 | The Lubrizol Corporation | Lubricants containing carboxylic esters |
Family Cites Families (8)
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US4820431A (en) * | 1986-02-28 | 1989-04-11 | Amoco Corporation | Railway lubricating oil |
GB8721325D0 (en) * | 1987-09-10 | 1987-10-14 | Anderson Strathclyde Plc | Ranging drum shearers |
US5021179A (en) * | 1990-07-12 | 1991-06-04 | Henkel Corporation | Lubrication for refrigerant heat transfer fluids |
DE69313895T2 (en) * | 1992-03-20 | 1998-02-12 | Unichema Chemie Bv | Mold release composition |
BR9301005A (en) * | 1992-04-29 | 1993-11-03 | Lubrizol Corp | LIQUID COMPOSITION AND METHOD FOR LUBRICATING A REFRIGERATION SYSTEM |
CN1038479C (en) * | 1992-07-21 | 1998-05-27 | 徐业林 | Optical health-care therapeutic apparatus |
IL108066A0 (en) * | 1993-01-07 | 1994-04-12 | Exxon Chemical Patents Inc | Refrigeration working fluid compositions containing difluoroethane or pentafluoroethane |
US5503761A (en) * | 1994-08-02 | 1996-04-02 | Exxon Research & Engineering Co./Hatco Corp. | Technical pentaerythritol esters as lubricant base stock |
-
1995
- 1995-09-21 US US08/531,766 patent/US5674822A/en not_active Expired - Lifetime
-
1996
- 1996-03-14 EP EP96908825A patent/EP0863964A1/en not_active Ceased
- 1996-03-14 BR BR9610647A patent/BR9610647A/en not_active IP Right Cessation
- 1996-03-14 WO PCT/US1996/003543 patent/WO1997011140A1/en not_active Application Discontinuation
- 1996-03-14 CN CN96197106A patent/CN1055963C/en not_active Expired - Fee Related
- 1996-03-14 JP JP9512670A patent/JPH11513417A/en not_active Ceased
- 1996-03-14 CA CA002230125A patent/CA2230125A1/en not_active Abandoned
- 1996-03-14 AU AU52538/96A patent/AU5253896A/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1158386A (en) * | 1966-06-16 | 1969-07-16 | Sinclair Research Inc | Synthetic Esters |
GB1264897A (en) * | 1968-11-05 | 1972-02-23 | ||
US3694382A (en) * | 1969-07-10 | 1972-09-26 | Ethyl Corp | Ester lubricant |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0946689A1 (en) * | 1996-09-13 | 1999-10-06 | Exxon Research And Engineering Company | Antioxidants and antioxidant boosters capable of producing hydroperoxyl radicals |
EP0946689A4 (en) * | 1996-09-13 | 2000-11-22 | Exxon Research Engineering Co | Antioxidants and antioxidant boosters capable of producing hydroperoxyl radicals |
Also Published As
Publication number | Publication date |
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CN1055963C (en) | 2000-08-30 |
CN1196750A (en) | 1998-10-21 |
AU5253896A (en) | 1997-04-09 |
US5674822A (en) | 1997-10-07 |
EP0863964A1 (en) | 1998-09-16 |
CA2230125A1 (en) | 1997-03-27 |
JPH11513417A (en) | 1999-11-16 |
BR9610647A (en) | 1999-02-17 |
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